What is Donald Trump's position on key election issues?
Donald Trump is now the presumptive Republican presidential nominee following rival candidate Ted Cruz's decision to drop out of the race and a big win in the Indiana primary.
Trump may not have formally secured the 1,237 delegates he needs to win the nomination but there is no serious opposition left to rival him.
As he becomes a serious contender, ITV News takes a look at his position on key issues:
Abortion
His views on abortion has changed many times during the campaign.
During an MSNBC interview on March 30, 2016, he said he was "pro-life" and he believes there should be punishment for women who undergo abortions if the procedure was banned.
On the question of whether there should be "some sort of punishment for women" who opt for abortions, Mr Trump answered: "For the woman? Yeah."
His campaign spokesperson later released a statement explaining that he is "pro-life, with exceptions".
The statement said said: "If Congress were to pass legislation making abortion illegal and the federal courts upheld this legislation, or any state were permitted to ban abortion under state and federal law, the doctor or any other person performing this illegal act upon a woman would be held legally responsible, not the woman."
Economy
According to his website, Donald Trump's main trade policy rests with China.
He says the US has "fully opened its markets to China but China has not reciprocated." America's goal under the Trump administration will become "accountability" and despite proposing a 45% tax on Chinese exports to the US, trade "will flourish."
According to the European Intelligence Unit, Mr Trump's views on exports could pose one of the greatest risks to the global economy.
In 2011, Donald Trump said that he would lower the corporation tax from 39% to 0% to encourage companies to "remain and grow" in the U.S.
Gay marriage
Donald Trump has been a consistent opponent of marriage equality because of his "traditional" beliefs.
His views on adoption and anti-bullying remain unclear.
Crime
In 2013, Donald Trump caused controversy by claiming that "blacks and hispanics" cause the "overwhelming" amount of violent crime.
In an interview with Fox News, Mr Trump dismissed the Black Lives Matter movement - who seek to highlight systematic mistreatment of African-Americans by police officers - as a group "looking for trouble."
Drugs
In 1990, Donald Trump was quoted in the Sarasota Herald-Tribune saying drugs should be legalised to "take profit away from these drug czars," and drug enforcement efforts were "a joke."
Mr Trump said in October 2015: "In terms of marijuana and legalisation, I think that should be a state issue, state-by-state. Marijuana is such a big thing. I think medical should. And then I really believe we should leave it up to the states."
Education
Donald Trump speaks about education in the US as being "woefully inadequate" and intends to restore quality "while reigning in costs and increasing access," according to Education News.
However, they say it isn't clear how Mr Trump plans to accomplish these goals.
Energy v Environment
Donald Trump refers to climate change as "a hoax" and says restrictions placed on US businesses halts their competitiveness in the global marketplace.
"There has been a big push to develop alternative forms of energy - so -called green energy - from renewable sources. That's a big mistake. To begin with, the whole push for renewable energy is being driven by the wrong motivation, the mistaken belief that global climate change is being caused by carbon emissions."
Foreign policy
Mr Trump has said he will adopt an 'America First' foreign policy in the hope to avoid another costly overseas war.
He believes Japan and South Korea should build nuclear arsenals, says NATO is a "rip off" and, speaking to CNN, said the world would be a better place if Saddam Hussein and Muammar Gaddafi were still in power - as they had a firmer grip on combating terrorists.
Gun control
To prevent mass-shootings in future, Mr Trump proposes to invest in mental health treatment.
Healthcare
Donald Trump has called the VA (Department of Veterans Affairs) health care program "a disaster" and promised to make the "corrupt and incompetent VA executives" redundant.
In a stinging attack on his website, he explains how 300,000 veterans have died waiting for care.
If elected, he promises to "decrease waiting times, improve healthcare outcomes" and invest in post-traumatic stress disorder and depression to "facilitate a seamless transition from service into civilian life."
Furthermore, Donald Trump has pledged to keep pre-existing care, but will scrap ObamaCare:
Security / Immigration
Donald Trump has arguably been most vocal in his unwavering opinions of national security and has a three-point plan for immigration:
Furthermore, the Republican presidential frontrunner said: "Donald J Trump is calling for a total and complete shutdown of Muslims entering the United States until our country's representatives can figure out what's going on."
He added: "I don't want to be so politically correct. I like to solve problems. We have a serious, serious problem of hate. There is tremendous hate. Where large portions of a group of people, Islam, large portions want to use very, very harsh means.
"In the Middle East, we have people chopping the heads off Christians. We have things that we have never seen before. Not since medieval times have people seen what's going on. I would bring back waterboarding and I'd bring back a hell of a lot worse than waterboarding," he said.
"We have at least 11 million people that came in illegally. They will go out. Some will come back, the best, through a process. We need strong borders. We need a wall."
Jobs and welfare
In his speech announcing he is running for the Republican nomination for president last June, Donald Trump has said that unemployment in the US “anywhere from 18 to 20 percent” and “maybe even 21 percent.”
He has also previously said numerous times that he has “heard” the unemployment rate was really 42 percent.
As of April 1, the unemployment rate was 5%, according to the Bureau of Labor Statistics.
Mr Trump also said: "I'm going to bring jobs back from China, Mexico Japan, Vietnam. They are taking our jobs. They are taking our wealth. We have $2.5 trillion offshore. We're going to bring that money back."
He also said he's going to "save social security" saying there's a "tremendous waste, fraud and abuse".
Tax reforms
Mr Trump has said he doesn't mind "paying some taxes".
He said: "The middle class is getting clobbered in this country. I know people in hedge funds, they pay almost nothing and it's ridiculous."